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Finding the Fourth Proportional to 308,084.28, 425,148 and 168,377.36

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Solution

The fourth proportional to 308,084.28, 425,148 and 168,377.36 is: 232,356.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,084.28 : 425,148 = 168,377.36 : x
  2. Step 2: Convert to fraction form
    308,084.28/425,148 = 168,377.36/x
  3. Step 3: Cross multiply
    308,084.28x = 425,148 × 168,377.36
  4. Step 4: Simplify right side
    308,084.28x = 71,585,297,849.28
  5. Step 5: Solve for x
    x = 71,585,297,849.28/308,084.28
  6. Step 6: Final answer
    x = 232,356.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.